Lamez OD 200 Tablet SR contains Lamotrigine 200 mg, an anticonvulsant medication primarily used for the management of epilepsy and bipolar disorder. Lamotrigine acts by stabilizing neuronal membranes through inhibition of voltage-sensitive sodium channels, thereby modulating the release of excitatory neurotransmitters such as glutamate and aspartate. This mechanism helps reduce the frequency and severity of seizures and mood episodes. Lamez OD 200 Tablet SR is a sustained-release formulation designed to provide a controlled release of lamotrigine, ensuring consistent plasma concentration and improved patient compliance with once-daily dosing. It is indicated for the treatment of partial seizures, generalized seizures including tonic-clonic and absence seizures, and for the maintenance treatment of bipolar disorder to delay the occurrence of mood episodes. The medication should be initiated and titrated carefully to minimize the risk of serious skin reactions, including Stevens-Johnson syndrome. Common adverse effects may include dizziness, headache, blurred vision, and gastrointestinal disturbances. Caution is advised when co-administered with other antiepileptic drugs or medications that affect lamotrigine metabolism. Regular monitoring and adherence to prescribed dosing schedules are essential to optimize therapeutic outcomes and minimize adverse effects.